Cobalt House And 43 Bonhill Road, Bonhill Road, Dumbarton

Circa 1820. 2-storey classical house, with symmetrical 5-bay

south front and lower service wing extending to north. Polished

ashlar. South elevation: slightly advanced and pedimented

central bay with double pilastered doorpiece, recessed

panelled door with pilastered jambs and rectangular fanlight;

1st floor tripartite above. Single windows in remaining bays,

corniced at ground floor and with corbelled cills; all

windows 12-pane sashes in architraves. Broad angle pilasters.

Eaves course, cornice and blocking course; corniced end

stacks, and shallow-pitched piended slate roof. 2-bay side

elevation. Round-headed stair window at north in advanced

central bay.

Interior: most larger rooms subdivided, but some ceiling

plasterwork survives; cast-iron stair balusters. Low 2-storey

wing has central door on east elevation, flanked by

bipartites.

3 square, polished ashlar, panelled and corniced gatepiers to

east; simple cast-iron gates.